Finding the Fourth Proportional to 17,978.85, 26,968.42 and 5,499.11

Step by Step Solution

1. Step 1: Write the proportion equation
   17,978.85 : 26,968.42 = 5,499.11 : x
2. Step 2: Convert to fraction form
   17,978.85/26,968.42 = 5,499.11/x
3. Step 3: Cross multiply
   17,978.85x = 26,968.42 × 5,499.11
4. Step 4: Simplify right side
   17,978.85x = 148,302,173.26
5. Step 5: Solve for x
   x = 148,302,173.26/17,978.85
6. Step 6: Final answer
   x = 8,248.70